Patchwork libata: make ata_sff_data_xfer_noirq() work with 32-bit PIO

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Submitter Bartlomiej Zolnierkiewicz
Date Oct. 13, 2011, 1:04 p.m.
Message ID <201110131504.43311.bzolnier@gmail.com>
Download mbox | patch
Permalink /patch/119499/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Bartlomiej Zolnierkiewicz - Oct. 13, 2011, 1:04 p.m.
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Subject: [PATCH] libata: make ata_sff_data_xfer_noirq() work with 32-bit PIO

Always use ata_sff_data_xfer32() in ata_sff_data_xfer_noirq()
so the latter can be also used for host controllers supporting
32-bit PIO operations.

It is a completely safe thing to do because if 32-bit PIO is
not supported or enabled ata_sff_data_xfer32() will fallback
to a standard method.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
earlier references:
https://lkml.org/lkml/2009/11/25/335

 drivers/ata/libata-sff.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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Patch

Index: b/drivers/ata/libata-sff.c
===================================================================
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -838,7 +838,7 @@  unsigned int ata_sff_data_xfer_noirq(str
 	unsigned int consumed;
 
 	local_irq_save(flags);
-	consumed = ata_sff_data_xfer(dev, buf, buflen, rw);
+	consumed = ata_sff_data_xfer32(dev, buf, buflen, rw);
 	local_irq_restore(flags);
 
 	return consumed;